These walled areas have enabled a build-up of soil and the establishment of vegetation, notably tree mallow (Lavatera arborea), which provides nesting cover for the birds.
Arborea | Giudicato of Arborea | Freycinetia arborea | Arborea (Dungeons & Dragons) | Gmelina arborea | Cojoba arborea | ''U. pumila'' var. ''arborea'' | ''Tanaecia lepidea'' caterpillar on ''Careya arborea | Phylica arborea | Lavatera arborea | Clethra arborea | Barisone II of Arborea | Arborea (plane) | Arborea (band) |